Wilson Dam & Hydroelectric Plant, Spanning Tennessee River at Wilson D...
Significance: In 1918, by the directive of the U.S. War Department, the Army Corps of Engineers began construction on Wilson Dam, a large hydroelectric project that was to supply power to U.S. Nitrate Plant No.... More
Wilson Dam & Hydroelectric Plant, Spanning Tennessee River at Wilson D...
Significance: In 1918, by the directive of the U.S. War Department, the Army Corps of Engineers began construction on Wilson Dam, a large hydroelectric project that was to supply power to U.S. Nitrate Plant No.... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
North Casemates, Boulevard Norzagaray, San Juan, San Juan Municipio, P...
Significance: The massive fort of San Cristobal, located on the northeast corner of the old walled city of San Juan, was begun around 1633. An important link in the chain of defensive works of the city, it was ... More
White Haven, 7400 Grant Road, Affton, St. Louis County, MO
Unprocessed Field note material exists for this structure: FN-8, FN-22, N69 Survey number: HABS MO-1150 Building/structure dates: 1808 Initial Construction National Register of Historic Places NRIS Number: 79003205
White Haven, 7400 Grant Road, Affton, St. Louis County, MO
Unprocessed Field note material exists for this structure: FN-8, FN-22, N69 Survey number: HABS MO-1150 Building/structure dates: 1808 Initial Construction National Register of Historic Places NRIS Number: 79003205
Quarters No. 211, Boulevard Norzagaray, San Juan, San Juan Municipio, ...
Significance: Quarters No. 211, built in the early 19th century as a blacksmith shop for the Spanish Corps of Artillery. Remodeled in the 1880s as Officer's Quarters it continued to serve as such until 1964. S... More
Quarters No. 209, Boulevard Norzagaray, San Juan, San Juan Municipio, ...
Survey number: HABS PR-60 National Register of Historic Places NRIS Number: 66000930
Cistern Heads, Boulevard Norzagaray, San Juan, San Juan Municipio, PR
Significance: A good example of eighteenth-century cut stonework and detailing. Survey number: HABS PR-102 National Register of Historic Places NRIS Number: 66000930
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
La Trinidad Counterguard, San Juan, San Juan Municipio, PR
Significance: It was built between 1765-83 by military engineer Thomas O'Daly, Chief of the Spanish Corps of Engineers in San Juan, represents in capsule form the solution to tactical problems presented in the ... More
La Trinidad Counterguard, San Juan, San Juan Municipio, PR
Significance: It was built between 1765-83 by military engineer Thomas O'Daly, Chief of the Spanish Corps of Engineers in San Juan, represents in capsule form the solution to tactical problems presented in the ... More
White Haven, Barn, 7400 Grant Road, Affton, St. Louis County, MO
Survey number: HABS MO-1150-B National Register of Historic Places NRIS Number: 79003205
United States Nitrate Plant No. 2, Reservation Road, Muscle Shoals, Mu...
Significance: Production of Ammonium Nitrate. / Built as a war measure for the production of ammonium nitrate, a key component in high explosives, U.S.N.P. No. 2 became one of the largest plants of its kind wit... More
United States Nitrate Plant No. 2, Reservation Road, Muscle Shoals, Mu...
Significance: Production of Ammonium Nitrate. / Built as a war measure for the production of ammonium nitrate, a key component in high explosives, U.S.N.P. No. 2 became one of the largest plants of its kind wit... More
United States Nitrate Plant No. 2, Reservation Road, Muscle Shoals, Mu...
Significance: Production of Ammonium Nitrate. / Built as a war measure for the production of ammonium nitrate, a key component in high explosives, U.S.N.P. No. 2 became one of the largest plants of its kind wit... More
United States Nitrate Plant No. 2, Reservation Road, Muscle Shoals, Mu...
Significance: Production of Ammonium Nitrate. / Built as a war measure for the production of ammonium nitrate, a key component in high explosives, U.S.N.P. No. 2 became one of the largest plants of its kind wit... More
United States Nitrate Plant No. 2, Reservation Road, Muscle Shoals, Mu...
Significance: Production of Ammonium Nitrate. / Built as a war measure for the production of ammonium nitrate, a key component in high explosives, U.S.N.P. No. 2 became one of the largest plants of its kind wit... More
United States Nitrate Plant No. 2, Reservation Road, Muscle Shoals, Mu...
Significance: Production of Ammonium Nitrate. / Built as a war measure for the production of ammonium nitrate, a key component in high explosives, U.S.N.P. No. 2 became one of the largest plants of its kind wit... More
Potomac Power Plant, On West Virginia Shore of Potomac River, about 1 ...
Significance: The Potomac Power Plant was an innovative small hydroelectric facility that operated from 1899 to 1991, originally as part of a wood pulp mill (built 1888), and solely as a power house after a fir... More
Potomac Power Plant, On West Virginia Shore of Potomac River, about 1 ...
Significance: The Potomac Power Plant was an innovative small hydroelectric facility that operated from 1899 to 1991, originally as part of a wood pulp mill (built 1888), and solely as a power house after a fir... More
Potomac Power Plant, On West Virginia Shore of Potomac River, about 1 ...
Significance: The Potomac Power Plant was an innovative small hydroelectric facility that operated from 1899 to 1991, originally as part of a wood pulp mill (built 1888), and solely as a power house after a fir... More
Dry Dock Engine Works, 1801 Atwater Street, Detroit, Wayne County, MI
Significance: The Dry Dock Engine Works is significance, first of all, because of its role in manufacturing and repairing marine steam engines and boilers for Great Lakes freighters and passenger vessels from 1... More
Dry Dock Engine Works, 1801 Atwater Street, Detroit, Wayne County, MI
Significance: The Dry Dock Engine Works is significance, first of all, because of its role in manufacturing and repairing marine steam engines and boilers for Great Lakes freighters and passenger vessels from 1... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
White Haven, 7400 Grant Road, Affton, St. Louis County, MO
Unprocessed Field note material exists for this structure: FN-8, FN-22, N69 Survey number: HABS MO-1150 Building/structure dates: 1808 Initial Construction National Register of Historic Places NRIS Number: 79003205
White Haven, 7400 Grant Road, Affton, St. Louis County, MO
Unprocessed Field note material exists for this structure: FN-8, FN-22, N69 Survey number: HABS MO-1150 Building/structure dates: 1808 Initial Construction National Register of Historic Places NRIS Number: 79003205
White Haven, 7400 Grant Road, Affton, St. Louis County, MO
Unprocessed Field note material exists for this structure: FN-8, FN-22, N69 Survey number: HABS MO-1150 Building/structure dates: 1808 Initial Construction National Register of Historic Places NRIS Number: 79003205
White Haven, 7400 Grant Road, Affton, St. Louis County, MO
Unprocessed Field note material exists for this structure: FN-8, FN-22, N69 Survey number: HABS MO-1150 Building/structure dates: 1808 Initial Construction National Register of Historic Places NRIS Number: 79003205
Entrance Gate, Boulevard Norzagaray, San Juan, San Juan Municipio, PR
Survey number: HABS PR-56 National Register of Historic Places NRIS Number: 66000930
Pennsylvania Railroad Company House, 1121-23 Eighth Avenue, Altoona, B...
Written data includes copies of floor plans. Significance: Unlike the Cambria Iron Works in Johnstown, which built hundreds of company houses, the Pennsylvania Railroad Company eschewed the construction of hous... More
Chisos Basin Store, Castolon, Brewster County, TX
Significance: The Chisos Basin Store, built as a temporary structure in 1941 or early 1942, is constructed of adobe in a vaguely Spanish style, part of a larger complex with this architectural theme. After the... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
Standard Gold Mill, East of Bodie Creek, Northeast of Bodie, Bodie, Mo...
Significance: The Standard mill is significant as an intact example of the "model California stamp mill" that developed from the flowering of nineteenth-century developments in mining and milling technologies i... More
La Trinidad Counterguard, San Juan, San Juan Municipio, PR
Significance: It was built between 1765-83 by military engineer Thomas O'Daly, Chief of the Spanish Corps of Engineers in San Juan, represents in capsule form the solution to tactical problems presented in the ... More
White Haven, Barn, 7400 Grant Road, Affton, St. Louis County, MO
Survey number: HABS MO-1150-B National Register of Historic Places NRIS Number: 79003205
United States Nitrate Plant No. 2, Reservation Road, Muscle Shoals, Mu...
Significance: Production of Ammonium Nitrate. / Built as a war measure for the production of ammonium nitrate, a key component in high explosives, U.S.N.P. No. 2 became one of the largest plants of its kind wit... More
United States Nitrate Plant No. 2, Reservation Road, Muscle Shoals, Mu...
Significance: Production of Ammonium Nitrate. / Built as a war measure for the production of ammonium nitrate, a key component in high explosives, U.S.N.P. No. 2 became one of the largest plants of its kind wit... More
United States Nitrate Plant No. 2, Reservation Road, Muscle Shoals, Mu...
Significance: Production of Ammonium Nitrate. / Built as a war measure for the production of ammonium nitrate, a key component in high explosives, U.S.N.P. No. 2 became one of the largest plants of its kind wit... More
Potomac Power Plant, On West Virginia Shore of Potomac River, about 1 ...
Significance: The Potomac Power Plant was an innovative small hydroelectric facility that operated from 1899 to 1991, originally as part of a wood pulp mill (built 1888), and solely as a power house after a fir... More
Potomac Power Plant, On West Virginia Shore of Potomac River, about 1 ...
Significance: The Potomac Power Plant was an innovative small hydroelectric facility that operated from 1899 to 1991, originally as part of a wood pulp mill (built 1888), and solely as a power house after a fir... More
Potomac Power Plant, On West Virginia Shore of Potomac River, about 1 ...
Significance: The Potomac Power Plant was an innovative small hydroelectric facility that operated from 1899 to 1991, originally as part of a wood pulp mill (built 1888), and solely as a power house after a fir... More
Dry Dock Engine Works, 1801 Atwater Street, Detroit, Wayne County, MI
Significance: The Dry Dock Engine Works is significance, first of all, because of its role in manufacturing and repairing marine steam engines and boilers for Great Lakes freighters and passenger vessels from 1... More
Dry Dock Engine Works, 1801 Atwater Street, Detroit, Wayne County, MI
Significance: The Dry Dock Engine Works is significance, first of all, because of its role in manufacturing and repairing marine steam engines and boilers for Great Lakes freighters and passenger vessels from 1... More
Weston House, 1016-1018 Howard Avenue, Altoona, Blair County, PA
Unprocessed Field note material exists for this structure: FN-309 Survey number: HABS PA-5793 Building/structure dates: after. 1860- before. 1870 Initial Construction
Wilson Dam & Hydroelectric Plant, Spanning Tennessee River at Wilson D...
Significance: In 1918, by the directive of the U.S. War Department, the Army Corps of Engineers began construction on Wilson Dam, a large hydroelectric project that was to supply power to U.S. Nitrate Plant No.... More
Wilson Dam & Hydroelectric Plant, Spanning Tennessee River at Wilson D...
Significance: In 1918, by the directive of the U.S. War Department, the Army Corps of Engineers began construction on Wilson Dam, a large hydroelectric project that was to supply power to U.S. Nitrate Plant No.... More
Wilson Dam & Hydroelectric Plant, Spanning Tennessee River at Wilson D...
Significance: In 1918, by the directive of the U.S. War Department, the Army Corps of Engineers began construction on Wilson Dam, a large hydroelectric project that was to supply power to U.S. Nitrate Plant No.... More
Wilson Dam & Hydroelectric Plant, Spanning Tennessee River at Wilson D...
Significance: In 1918, by the directive of the U.S. War Department, the Army Corps of Engineers began construction on Wilson Dam, a large hydroelectric project that was to supply power to U.S. Nitrate Plant No.... More
Wilson Dam & Hydroelectric Plant, Spanning Tennessee River at Wilson D...
Significance: In 1918, by the directive of the U.S. War Department, the Army Corps of Engineers began construction on Wilson Dam, a large hydroelectric project that was to supply power to U.S. Nitrate Plant No.... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Castillo de San Felipe del Morro, Northwest end of San Juan, San Juan,...
Significance: This fort is one of the three defenses erected to protect Spain's first permanent colony in the present territory of the United States. Unprocessed Field note material exists for this structure: ... More
Quarters No. 211, Boulevard Norzagaray, San Juan, San Juan Municipio, ...
Significance: Quarters No. 211, built in the early 19th century as a blacksmith shop for the Spanish Corps of Artillery. Remodeled in the 1880s as Officer's Quarters it continued to serve as such until 1964. S... More
Quarters No. 211, Boulevard Norzagaray, San Juan, San Juan Municipio, ...
Significance: Quarters No. 211, built in the early 19th century as a blacksmith shop for the Spanish Corps of Artillery. Remodeled in the 1880s as Officer's Quarters it continued to serve as such until 1964. S... More
Fuerte El Abanico, Guardhouse, Boulevard Narzagaray, San Juan, San Jua...
Significance: This structure is an excellent example of mid-19th century garrison architecture. It was first used as a guardhouse and later as a carriage shed. The building has been considerably modified, parti... More